Porifera-microbialites of the Lower Liassic (Northern Calcareous ...

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zur Entstehung von syndiagenetischen Stromatactis-Hohlräumen. Der Spikulit wird von allochthonen Sedimenten unterlagert, die Spalten und Senken der ehemaligen Riff-Oberfläche ausfüllen. Um die liassischen Umweltbedingungen genauer zu erfassen, wurden Sedimente und assoziierte Fe/Mn-Krusten per Röntgenfluoreszenzanalyse und ICP-Massenspektrometrie untersucht. Entsprechend der ermittelten Verteilungsmuster von Haupt- und Nebenelementen scheinen die Fe/Mn-Krusten unter Normalbedingungen ausgefällte Präzipitate darzustellen. Hingegen weisen Krusten sowie Spikulit eine negative Cer-Anomalie auf, ein in unterliassischem Krusten-Material der Nördlichen Kalkalpen erstmals beobachtetes Phänomen. Möglicherweise sind die Werte das Ergebnis erhöhter, mikrobiell induzierter Karbonatfällungsraten innerhalb von Bakterienmatten, aber auch ein geringer Einfluß von hydrothermalen Wässern ist nicht auszuschliessen. Weitere Messungen der stabilen Kohlenstoff- und Sauerstoff-Isotope aus derselben Abfolge des Unter-Hettangium bis Unter-Sinemurium weisen, ähnlich den Ergebnissen aus Adnet, eine geringfügig negative δ 13 Ccarb-Anomalie auf.
Content 1. Introduction ......................................................................................................................................... 9 2. Geological Setting ............................................................................................................................. 11 3. Methods .............................................................................................................................................. 15 4. Localities (Facies and Sponge Analyses) ....................................................................................... 17 4.1. Glasenbachklamm (GK) ......................................................................................................... 17 4.2. Mühlstein-South (MS) + Mörtlbachgraben (G) ....................................................................... 20 4.3. Sonntagkendlgraben (KB) ...................................................................................................... 23 4.4. Hochfelln (HF) ........................................................................................................................ 25 4.5. Fonsjoch/Wilde Kirche Reef (FJ) ............................................................................................ 27 4.6. Rötelwand Reef (RÖ) + Grobriedel (GR) ............................................................................... 28 4.7. Feichtenstein Reef (F) ............................................................................................................ 29 4.8. Scheibelberg (SBB) ................................................................................................................ 30 4.9. Adnet Reef .............................................................................................................................. 31 4.9.1. Rot-Grau-Schnöll Quarry (S+SCH) ........................................................................ 33 4.9.2. Lienbacher Quarry (L) ............................................................................................ 34 4.9.3. Eisenmann Quarry (E) + Tropf Quarry (TB) ........................................................... 36 4.10. Steinplatte Ramp .................................................................................................................... 37 4.10.1. Plattenkogel (ST) ................................................................................................... 39 4.10.2. Fischer’s Coral Garden (CG) ................................................................................. 41 4.11. Rettenbachalm/Jaglingbach (RJ) ........................................................................................... 42 4.12. Luegwinkel (LW) ..................................................................................................................... 43 4.13. Moosbergalm (M) ................................................................................................................... 46 4.14. Sattelberg (SB) ....................................................................................................................... 47 4.15. Tannhauser Berg (TA) ............................................................................................................ 49 5. The Schnöll Formation (Spiculite Facies) ....................................................................................... 53 5.1. The Schnöll Formation at Adnet (Rot-Grau-Schnöll Quarry) ................................................. 53 5.1.1. The Sponge Fauna of the Schnöll Formation at Adnet .......................................... 56 5.1.1.1. Sponge Description ................................................................................ 56 5.1.1.2. Sponge Taxonomy ................................................................................. 61 5.1.1.3. Sponge Taphonomy ............................................................................... 63 5.1.1.4. Sponge-related Stromatactis Cavities ................................................... 67 5.2. The Schnöll Formation at Steinplatte (Plattenkogel Outcrop) ................................................ 68 5.2.1. The Sponge Fauna of the Schnöll Formation at Steinplatte .................................. 70 5.2.2. Diagenesis .............................................................................................................. 72
Page 1 and 2: Porifera-microbialites of the Lower
Page 3 and 4: Abstract In the aftermath of the Tr
Page 5: Zusammenfassung Nach dem Aussterbee
Page 9 and 10: Introduction 9 1. Introduction In U
Page 11 and 12: Geological Setting 11 2. Geological
Page 13 and 14: Geological Setting 13 Fig. 2. Locat
Page 15 and 16: Methods 15 3. Methods In the Rot-Gr
Page 17 and 18: Localities (Facies and Sponge Analy
Page 51: Localities (Facies and Sponge Analy
Page 54 and 55: 54 and ferromanganese crusts. The b
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56 5.1.1. The Sponge Fauna of the S
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58 Skeleton: Lyssacinosid type with
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60 Fig. 29a. Skeleton types and ass
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62 new data from recent species to
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64 sheltered by the adjacent sand d
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66 In addition to the episodic sedi
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68 found in the most condensed sect
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70 5.2.1. The Sponge Fauna of the S
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72 5.2.2. Diagenesis Sponge-dominat
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Fossil Record of Sponges 75 6. Foss
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Fossil Record of Sponges 77 Fig. 35
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Comparison with other Spiculites 83
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Comparison with other Spiculites 85
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88 Hallam 1996; Hallam and Goodfell
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90 From the Lower Liassic Kendlbach
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92 At Steinplatte/Plattenkogel loca
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94 8.2. Major and Trace Elements We
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96 sediments. Due to this “contam
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98 significance of microbial involv
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100
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102 � The Lower Liassic sediments
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104 Böhm F (1992) Mikrofazies und
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106 Garrison RE, Fischer AG (1969)
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108 Krause FF, Scotese CR, Nieto C,
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110 Olsen PE, Kent DV, Sues H-D, Ko
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112 Schulze FE (1904) Hexactinellid
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114 Wendt J (1969) Stratigraphie un
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Plate 1 Glasenbachklamm - Lower Lia
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Plate 2 Mühlstein-South - Hornstei
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Plate 3 Sonntagkendlgraben - Flecke
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Plate 4 Hochgern - Liassic sediment
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Plate 5 Scheibelberg - Type locatio
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Plate 6 Luegwinkel - Liassic sedime
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Plate 7 Moosbergalm - Slope and bas
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Plate 8 Tannhauser Berg - Liassic s
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Plate 9 Adnet / Rot-Grau-Schnöll Q
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Plate 10 Adnet / Rot-Grau-Schnöll
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Plate 15 Adnet / Lienbacher Quarry
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Plate 16 Adnet / Eisenmann Quarry -
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Plate 17 Steinplatte / Plattenkogel
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Plate 21 Diapir of Murguia / Spain
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Plate 22 Arctic Vesterisbanken Seam
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Supplement 1.1 (datas to Fig. 42) -
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Supplement 1.2 (datas to Fig. 43 +
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Supplement 2. (datas to Fig. 47) -
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Supplement 3.2 (datas to Fig. 46) -
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Supplement 4. - Energy Dispersive X
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Supplement 6. - Register of Localit
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Steinplatte/Fischer’s Coral Garde
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Publications Parts of this study ar
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Curriculum Vitae Geboren in Bremerh
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